Hi,

  I just downloaded the latest "WinHTTrack Website Copier 3.42-2".

  By ADD URL button I was adding a URL which has "Basic Authentication"
enabled. I see that the final url added had 
 <http://<password>:<password>@<URL>>;   instead of 
<http://<user>:<password>@<URL>>;   

   I manually changed the added url (glad it's editable)and ran it without any
problem.